This is an eight level mission pack. Heading for Earth is an asteroid half the size of the moon. When it hits, all life on Earth will be destroyed. This is no ordinary chunk of planetary debris. This rock has a primitive fusion drive and the most powerful shield we have ever seen. It is a weapon. It is the Stroggs last hope of victory. It is The Armageddon Device. It has new monsters, weapons, textures and sounds as well as great co-op and DM play.